Lime-hydrating machine.



No. 872,390. PATENTED DEG. 3, 1907. J. H. VAN GLAHN.

LMB HYDRATING MACHINE.

APPLIUATION FILED HAB. 4. 1907.

2 SHEETS-SHEET 1.

No. 872,390. y

P ATENTBD DB0. 3,1907. J. H. VAN GLAHN.

LIME HYDRATING MACHINE.

APPLIOATION FILED MAR. 4, 1907.

2 SHEETS-SHEET 2.

WVI'NESSES.- c.. WJ@

PATENT OFFICE.

JOHN H. VAN GLAHN, OF TOLEDO, OHIO.

LIME-HYDRATING MACHINE.

Speccation of Letters Patent.

Patented Dec. 3, 1907.

Application ined March 4.1907. serai No. 360.354.

To all whom it may concern:

Be it known that I, JOHN H. VAN GLAHN, a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio, haveinvented certain new and useful Improvements in Lime-Hydrating Machines;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanymg drawings, and to the letters and igures of referencemarked thereon, which form a part of this specilication.

My invention relates to a machine for the hydration of lime and is'designed to furnish a mechanism by means of which definite quantitiesof quick lime may be mechanically fed to the machine and by means ofwhich as the lime is fed to the machine it is supplied automaticallywith a definite predetermined proportion of water just sull'icient toeffect hydration.

My invention is also designed to thoroughly agitate and mix the Timeafter the water has been added and to screen the hydrated lime,separating the line hydrated product from the lumps and coarser portionsof the lime, thus furnlshing a uniform product.

I attain these objects by means of the devices and arrangement of partshereinafter described and shown, and illustrated in the accompanyingdrawings in which,-

Flgure 1 is a side-elevation of my machine with .one ofthe sides removedto disclose the interlor mechanism and arrangement; Fig. 2, anend-elevation of the same seen from'the left7 with the end-coveringremoved; Fig. 3, a vertical transverse sectional. elevation taken online w, Fig. 1 Fig. 4, a like view taken on line Fig. 1, and Fig. 5, asimilar view taken on line y, Fig. 1. f

Like numerals of reference indicate like parts throughout the drawings.

In the drawings, 1 is an elongated rectangular frame closed tightly atits sides, ends, top, and `bottom to revent the escape of dust.Lengthwise o? the chamber thus formed `is a trough 2 forming ahorizontal partition through nearly the entire length of the machine.Over the top of the inlet-end of the machine is a ho per 3 having aspout 4 pivoted, as at 5,' and) discharging, as at 6,

` spout causes the lime to be fed from the hopper uniformly. The shaft 8is journaled at one end of a frame 9, ivoted, as at 10, upon the frameof the mac ine, the opposite end of the frame 9 being connected by cord11 with a winch 12 by means of which the knocker 7 is adjusted inrelation to the s out 4, thus regulating the length of drop o the spoutand the consequent force of the knock. Quick lime bein supplied to thehopper 3, the shaft 8 and nocker 7 being in motion, the contents of thehopper will be delivered into the hydrating chamber of the machine at aregular uniform rate, the feed from the hopper being regulated by meansof the winch 12 as above stated.

13 is a tank mounted upon the top of the machine' near the hopper 3 anddivided into an up er and lower chamber. Water is fed into t e upperchamber through supply pipe 14 and is discharged through the o ening 6into the hydrating chamber by discharge pipe 15 leading from the lowerchamber of the tank 13.

16 is avalve in the supply-pipe controlled by an adjustable float 17,this oat and valve tending ,to maintain the water in the upper chamberof the tank constantly at a uniform hei ht. In the floor of the upperchamber of t e tank is a valve 18 the stem of which is connected with alever 19 fulcrumed at 20 and connected at its other end, as at 21, witha vertical rod 22 which at its lower end is pivoted, as at 23, to alever 24. This lever is fulcrumed at one end n the side of the machine,as at 25, the other end of the lever lying in the path of a fingerorwiper 26 fixed radially upon the shaft 27. At each rotation of theshaft 27 the valve 18 is opened and the water is permitted to ow fromthe upper chamber of the tank as long as the rod 24 1s engaged by thewiper 26, permltting a quantity of water to flow from the upper chamberof the tank into the lower chamber 1n direct roportion to the time thatthe valve 18 1s lield open. The length of time that the valve 18 remainsopen is governed by means of an adjusting device in the lever 24. Thislever is made in two parts vwhichmoverlap each other, as at 24,'(see'Fig. 1), the overlapping portions being clamped together by screws 24h.By means of the screws and holes or slots in the overlapping ends of thetwo parts of the lever 24 the lever may be lengthened or shortened atwill so that the wiper 26 may barely touch the end of the lever 24 or itmay be caused to englpge the lever for a considerable portion of t erotation of the wiper. A definite portion of water having been perlmttedto flow into the lower chamber of the tank, this water now escapesthrough the pipe 15 at the same time that the lime is flowing from thespout 4 and in a quantity in -direct proportion to the regulated. feedof the lime. The discharge pipe 15 is provided with a cock 15,

by which the How of the water from the lower compartment of the tank maybe exactly adjusted.

The .shaft 27 extends across the hydrating chamber atits inlet-end, andon this shaft, on opposite sides of the chamber, are mounted a pair ofsprocket-wheels 28. At the opposite end of this chamber is journaled ashaft v29, extending across the hydrating chamber, and on this shaft arefixed, at op posite sides of the chamber, a pair of sprocket wheels 30.Over each pair of s rocket-Wheels 28-30 asses an endless c ain 31.Secured horizontally between these two chains', at regular equi-distantintervals, are Scrapers or plows 32 curved in vertical section and havinoperative edgesl which conform to and bare y touch the bottom of thetrouh 2. i

Between the ines and y-Jy, Fig. 1, the frame and casing of the machineis broadened as illustrated in Fig. 4. In this broadened part of themachine at o posite` sides of the path traversed by the p ows 32 aresuspended vertical screens or sieves 33 vfrom hangers 34. These screensare connected by rods 35 to levers 36 fulcrumed at one end, as at 37,upon the frame of the machine, the other end of the lever beingconnected, as at 38, with a cam-rod 39 connected with a cam 4() on shaft41, driven as hereinafter described.

The chamber of the broadened part of my machine is provided with a floor42 inclined downwardly toward its longitudinal center -as shown in Fi 4,this troughlike loor eX- tending beneat the trough 2 and the screens33.r In the meeting an le of the flooi` 42 is a worm conveyer 43 lea ingto the discharge spout 44 of the machine.

Y At its discharge end the trough 2 1s 1nclined upwardly and terminatesdirectly above a shaking screen 45 swiveled at one' end upon horizontalcranks 46 and at its other end upon the cam-rod 39. The discharge end ofthe screen' 45 has an outlet down upon t spout 47. Beneath the screen 45is a hble driven as indicated by the dotted lines in f Fig. 1-. The drum494 has an opening which communicates, as at 52, with the conveyer 43.The underside of the drum 49 is pivoted as at 49, and-one margin of itsoutlet is adjustable by means of .wedge 49b by means of which the spacebetween the wall of the drum and the margin ofthe beater 50 may beadjusted as may be required;

The means for driving the various mechanisms of my machine will bereadily understood from l.an ins ection of Figj-,l of the drawings. '53is a riving pulley securedto a shaft 53i ljournaled on top of themachine. On this shaftis a chain-wheel 'from which power is transmittedthrough chain 54 to a pulley on the shaft 7. yOn the shaft 53 is anotherchain-wheel which'- through chain 55 transmits power to gears 56, 57,58, and 59, in the order` named, and through the chains 31 to thechain-wheel 28. On the shaft '53 is still another pulley which, throughbelt 60, transmits power tobevel gears` 61 which drive the conveyer 43,also to pulley 62 which through belt 63 drives 'the eccentric and itsshaft 40-41. f l

Theoperation of my device is as follows: The hopper3 being supplied withuick lime,

broken into small pieces, the tank eing conscribed. Now the Scrapers orplows 32 catch the lime and force it slowly along the trough 2, turningthe'material over and over and thoroughlyagitating it 'as it movesforward into that art of the chamber bounded at oposite si es bythereciprocating screens 33. y the time the lime has reached this pointit has greatly increased in bulk `and has be come soft and to a greatext-ent powdered. The. screens 33 rubbing againstfthe sides of the masscause the soft and powdered lime, for the most art, to fall through thescreens fie inclined surfaces 42 and into the open conduit of theconveyer 43 from whence the powdered finished material is conveyed tothe spout 44 and into bags or other receptacles. That part of the limewhich does not pass through the screens 33 r continues in its coursealong the trough 2 and is further turned and agitated-by the plows 32until it falls -u on the shaking screen 45. The lime which 1s fineenough to pass through this screen falls into the drum 49 where it ispulverized by the attrition and blows of the beater-arms 50. The limefrom the drum 49 falls into the conveyer 43 with the other finishedproduct. That part of the material which does not pass through thescreen 45 passes over the end of the screen and out through spout 47from whence, if desired, it may be conveyed back to the hopper 3 to beagain treated.

Having described my invention and its operation, what I claim and desireto secure by Letters Patent is,-

1. I a machine of the described character, an4 elongated chamber havinga trough-like bottom, an endless series of Scrapers traversing saidtrough-like portion, means at one end of said chamber for feeding intothe chamber lime and water in regulated quantities and proportions, atthe other end of said chamber upright screens at the sides of thechamber, means for actuating said screens, a screen beneath thedischarge end of the trough-like part arran ed to separate the coarsefrom the fine hy rate, and means for actuating said screens.

' v2. In a machine of the described character, an elongated chamberhaving a troughlike bottom, an endless series of scrapers traversingsaid trough-like portion, means at one end of said chamber for feedinginto the chamber lime and water in regulated quantities and proportions,at the other'end of said chamber upright screens at the sides of thechamber, means for actuating said screens, a screen beneath thedischarge end of the tro h-like part arranged to separate the coarse omthe fine h drate, means for actuating Isaid screen, a verizin mechanismarranged to receive the fine hy rate from the screen last mentioned, andmeans for conveying the output ofthe pulverizer and of the screens firstmentioned to a common outlet,

3. In a lime h drating machine, a hopper, a s y out for the opperpivoted at its upper en a knocker for the lower end of the spout, meansfor adjusting the force of the knock, a tank having two compartments oneabove the other, afloat valve in the upper tank, a valve 'between thetwo tanks, a driving gear for the machine, connections between thedriving gear and said knocker and between' the driving gear and saidlast mentioned valve, means for the adjustment of said connectionswhereby the force of the knock mayl be regulated and whereby theintervals between the movements of said last mentioned valve may bevaried, an elongated chamber end of said cham er in regulated quantitiesand proportions, means for agitating and` conveying lime through saidchamber from.

its inlet-end to its discharge-end, a pair of screens at o posite sideso said chamber, a floor beneat -said chamber and said pair of screensinclined downwardly and inwardly toward each other, and a conveyer inthe meeting angle of said floor.

5. In a hme hydrating machine, an elongated chamber having a trough-likefloor, means for feeding lime and water into one end of said chamber inre ulated quantities and proportions, meansv or agitating and conveyinglime through said chamber from its inlet-end to its dischar e-end, apair of screens at o posite sides ofgsaid chamber, a floor beneatli saidchamber and said pair of screens inclined downwardly and inwardly towardeach other, a conveyer in the meeting angle of said floor, and anotherscreen onto whlch said first mentioned trough-like fioor discharges,adapted to separate the coarse from the fine product and to dischargeits fine screenings into said conveyer.

6. In a lime hydrating machine, devices for feeding lime to the machinein regulated uantities, devices for feeding Water to the lime inregulated volume, means for agitatroo

